diff --git a/Pipfile.lock b/Pipfile.lock
index 4c63c2b..adca0e0 100644
--- a/Pipfile.lock
+++ b/Pipfile.lock
@@ -18,10 +18,10 @@
     "default": {
         "certifi": {
             "hashes": [
-                "sha256:47f9c83ef4c0c621eaef743f133f09fa8a74a9b75f037e8624f83bd1b6626cb7",
-                "sha256:993f830721089fef441cdfeb4b2c8c9df86f0c63239f06bd025a76a7daddb033"
+                "sha256:1a4995114262bffbc2413b159f2a1a480c969de6e6eb13ee966d470af86af59c",
+                "sha256:719a74fb9e33b9bd44cc7f3a8d94bc35e4049deebe19ba7d8e108280cfd59830"
             ],
-            "version": "==2018.11.29"
+            "version": "==2020.12.5"
         },
         "chardet": {
             "hashes": [
@@ -47,26 +47,26 @@
         },
         "urllib3": {
             "hashes": [
-                "sha256:61bf29cada3fc2fbefad4fdf059ea4bd1b4a86d2b6d15e1c7c0b582b9752fe39",
-                "sha256:de9529817c93f27c8ccbfead6985011db27bd0ddfcdb2d86f3f663385c6a9c22"
+                "sha256:2393a695cd12afedd0dcb26fe5d50d0cf248e5a66f75dbd89a3d4eb333a61af4",
+                "sha256:a637e5fae88995b256e3409dc4d52c2e2e0ba32c42a6365fee8bbd2238de3cfb"
             ],
-            "version": "==1.24.1"
+            "version": "==1.24.3"
         }
     },
     "develop": {
         "atomicwrites": {
             "hashes": [
-                "sha256:03472c30eb2c5d1ba9227e4c2ca66ab8287fbfbbda3888aa93dc2e28fc6811b4",
-                "sha256:75a9445bac02d8d058d5e1fe689654ba5a6556a1dfd8ce6ec55a0ed79866cfa6"
+                "sha256:6d1784dea7c0c8d4a5172b6c620f40b6e4cbfdf96d783691f2e1302a7b88e197",
+                "sha256:ae70396ad1a434f9c7046fd2dd196fc04b12f9e91ffb859164193be8b6168a7a"
             ],
-            "version": "==1.3.0"
+            "version": "==1.4.0"
         },
         "attrs": {
             "hashes": [
-                "sha256:10cbf6e27dbce8c30807caf056c8eb50917e0eaafe86347671b57254006c3e69",
-                "sha256:ca4be454458f9dec299268d472aaa5a11f67a4ff70093396e1ceae9c76cf4bbb"
+                "sha256:31b2eced602aa8423c2aea9c76a724617ed67cf9513173fd3a4f03e3a929c7e6",
+                "sha256:832aa3cde19744e49938b91fea06d69ecb9e649c93ba974535d08ad92164f700"
             ],
-            "version": "==18.2.0"
+            "version": "==20.3.0"
         },
         "autopep8": {
             "hashes": [
@@ -77,17 +77,18 @@
         },
         "bleach": {
             "hashes": [
-                "sha256:213336e49e102af26d9cde77dd2d0397afabc5a6bf2fed985dc35b5d1e285a16",
-                "sha256:3fdf7f77adcf649c9911387df51254b813185e32b2c6619f690b593a617e19fa"
+                "sha256:6123ddc1052673e52bab52cdc955bcb57a015264a1c57d37bea2f6b817af0125",
+                "sha256:98b3170739e5e83dd9dc19633f074727ad848cbedb6026708c8ac2d3b697a433"
             ],
-            "version": "==3.1.0"
+            "index": "pypi",
+            "version": "==3.3.0"
         },
         "certifi": {
             "hashes": [
-                "sha256:47f9c83ef4c0c621eaef743f133f09fa8a74a9b75f037e8624f83bd1b6626cb7",
-                "sha256:993f830721089fef441cdfeb4b2c8c9df86f0c63239f06bd025a76a7daddb033"
+                "sha256:1a4995114262bffbc2413b159f2a1a480c969de6e6eb13ee966d470af86af59c",
+                "sha256:719a74fb9e33b9bd44cc7f3a8d94bc35e4049deebe19ba7d8e108280cfd59830"
             ],
-            "version": "==2018.11.29"
+            "version": "==2020.12.5"
         },
         "chardet": {
             "hashes": [
@@ -98,47 +99,64 @@
         },
         "coverage": {
             "hashes": [
-                "sha256:09e47c529ff77bf042ecfe858fb55c3e3eb97aac2c87f0349ab5a7efd6b3939f",
-                "sha256:0a1f9b0eb3aa15c990c328535655847b3420231af299386cfe5efc98f9c250fe",
-                "sha256:0cc941b37b8c2ececfed341444a456912e740ecf515d560de58b9a76562d966d",
-                "sha256:10e8af18d1315de936d67775d3a814cc81d0747a1a0312d84e27ae5610e313b0",
-                "sha256:1b4276550b86caa60606bd3572b52769860a81a70754a54acc8ba789ce74d607",
-                "sha256:1e8a2627c48266c7b813975335cfdea58c706fe36f607c97d9392e61502dc79d",
-                "sha256:2b224052bfd801beb7478b03e8a66f3f25ea56ea488922e98903914ac9ac930b",
-                "sha256:447c450a093766744ab53bf1e7063ec82866f27bcb4f4c907da25ad293bba7e3",
-                "sha256:46101fc20c6f6568561cdd15a54018bb42980954b79aa46da8ae6f008066a30e",
-                "sha256:4710dc676bb4b779c4361b54eb308bc84d64a2fa3d78e5f7228921eccce5d815",
-                "sha256:510986f9a280cd05189b42eee2b69fecdf5bf9651d4cd315ea21d24a964a3c36",
-                "sha256:5535dda5739257effef56e49a1c51c71f1d37a6e5607bb25a5eee507c59580d1",
-                "sha256:5a7524042014642b39b1fcae85fb37556c200e64ec90824ae9ecf7b667ccfc14",
-                "sha256:5f55028169ef85e1fa8e4b8b1b91c0b3b0fa3297c4fb22990d46ff01d22c2d6c",
-                "sha256:6694d5573e7790a0e8d3d177d7a416ca5f5c150742ee703f3c18df76260de794",
-                "sha256:6831e1ac20ac52634da606b658b0b2712d26984999c9d93f0c6e59fe62ca741b",
-                "sha256:77f0d9fa5e10d03aa4528436e33423bfa3718b86c646615f04616294c935f840",
-                "sha256:828ad813c7cdc2e71dcf141912c685bfe4b548c0e6d9540db6418b807c345ddd",
-                "sha256:85a06c61598b14b015d4df233d249cd5abfa61084ef5b9f64a48e997fd829a82",
-                "sha256:8cb4febad0f0b26c6f62e1628f2053954ad2c555d67660f28dfb1b0496711952",
-                "sha256:a5c58664b23b248b16b96253880b2868fb34358911400a7ba39d7f6399935389",
-                "sha256:aaa0f296e503cda4bc07566f592cd7a28779d433f3a23c48082af425d6d5a78f",
-                "sha256:ab235d9fe64833f12d1334d29b558aacedfbca2356dfb9691f2d0d38a8a7bfb4",
-                "sha256:b3b0c8f660fae65eac74fbf003f3103769b90012ae7a460863010539bb7a80da",
-                "sha256:bab8e6d510d2ea0f1d14f12642e3f35cefa47a9b2e4c7cea1852b52bc9c49647",
-                "sha256:c45297bbdbc8bb79b02cf41417d63352b70bcb76f1bbb1ee7d47b3e89e42f95d",
-                "sha256:d19bca47c8a01b92640c614a9147b081a1974f69168ecd494687c827109e8f42",
-                "sha256:d64b4340a0c488a9e79b66ec9f9d77d02b99b772c8b8afd46c1294c1d39ca478",
-                "sha256:da969da069a82bbb5300b59161d8d7c8d423bc4ccd3b410a9b4d8932aeefc14b",
-                "sha256:ed02c7539705696ecb7dc9d476d861f3904a8d2b7e894bd418994920935d36bb",
-                "sha256:ee5b8abc35b549012e03a7b1e86c09491457dba6c94112a2482b18589cc2bdb9"
-            ],
-            "version": "==4.5.2"
+                "sha256:03ed2a641e412e42cc35c244508cf186015c217f0e4d496bf6d7078ebe837ae7",
+                "sha256:04b14e45d6a8e159c9767ae57ecb34563ad93440fc1b26516a89ceb5b33c1ad5",
+                "sha256:0cdde51bfcf6b6bd862ee9be324521ec619b20590787d1655d005c3fb175005f",
+                "sha256:0f48fc7dc82ee14aeaedb986e175a429d24129b7eada1b7e94a864e4f0644dde",
+                "sha256:107d327071061fd4f4a2587d14c389a27e4e5c93c7cba5f1f59987181903902f",
+                "sha256:1375bb8b88cb050a2d4e0da901001347a44302aeadb8ceb4b6e5aa373b8ea68f",
+                "sha256:14a9f1887591684fb59fdba8feef7123a0da2424b0652e1b58dd5b9a7bb1188c",
+                "sha256:16baa799ec09cc0dcb43a10680573269d407c159325972dd7114ee7649e56c66",
+                "sha256:1b811662ecf72eb2d08872731636aee6559cae21862c36f74703be727b45df90",
+                "sha256:1ccae21a076d3d5f471700f6d30eb486da1626c380b23c70ae32ab823e453337",
+                "sha256:2f2cf7a42d4b7654c9a67b9d091ec24374f7c58794858bff632a2039cb15984d",
+                "sha256:322549b880b2d746a7672bf6ff9ed3f895e9c9f108b714e7360292aa5c5d7cf4",
+                "sha256:32ab83016c24c5cf3db2943286b85b0a172dae08c58d0f53875235219b676409",
+                "sha256:3fe50f1cac369b02d34ad904dfe0771acc483f82a1b54c5e93632916ba847b37",
+                "sha256:4a780807e80479f281d47ee4af2eb2df3e4ccf4723484f77da0bb49d027e40a1",
+                "sha256:4a8eb7785bd23565b542b01fb39115a975fefb4a82f23d407503eee2c0106247",
+                "sha256:5bee3970617b3d74759b2d2df2f6a327d372f9732f9ccbf03fa591b5f7581e39",
+                "sha256:60a3307a84ec60578accd35d7f0c71a3a971430ed7eca6567399d2b50ef37b8c",
+                "sha256:6625e52b6f346a283c3d563d1fd8bae8956daafc64bb5bbd2b8f8a07608e3994",
+                "sha256:66a5aae8233d766a877c5ef293ec5ab9520929c2578fd2069308a98b7374ea8c",
+                "sha256:68fb816a5dd901c6aff352ce49e2a0ffadacdf9b6fae282a69e7a16a02dad5fb",
+                "sha256:6b588b5cf51dc0fd1c9e19f622457cc74b7d26fe295432e434525f1c0fae02bc",
+                "sha256:6c4d7165a4e8f41eca6b990c12ee7f44fef3932fac48ca32cecb3a1b2223c21f",
+                "sha256:6d2e262e5e8da6fa56e774fb8e2643417351427604c2b177f8e8c5f75fc928ca",
+                "sha256:6d9c88b787638a451f41f97446a1c9fd416e669b4d9717ae4615bd29de1ac135",
+                "sha256:755c56beeacac6a24c8e1074f89f34f4373abce8b662470d3aa719ae304931f3",
+                "sha256:7e40d3f8eb472c1509b12ac2a7e24158ec352fc8567b77ab02c0db053927e339",
+                "sha256:812eaf4939ef2284d29653bcfee9665f11f013724f07258928f849a2306ea9f9",
+                "sha256:84df004223fd0550d0ea7a37882e5c889f3c6d45535c639ce9802293b39cd5c9",
+                "sha256:859f0add98707b182b4867359e12bde806b82483fb12a9ae868a77880fc3b7af",
+                "sha256:87c4b38288f71acd2106f5d94f575bc2136ea2887fdb5dfe18003c881fa6b370",
+                "sha256:89fc12c6371bf963809abc46cced4a01ca4f99cba17be5e7d416ed7ef1245d19",
+                "sha256:9564ac7eb1652c3701ac691ca72934dd3009997c81266807aef924012df2f4b3",
+                "sha256:9754a5c265f991317de2bac0c70a746efc2b695cf4d49f5d2cddeac36544fb44",
+                "sha256:a565f48c4aae72d1d3d3f8e8fb7218f5609c964e9c6f68604608e5958b9c60c3",
+                "sha256:a636160680c6e526b84f85d304e2f0bb4e94f8284dd765a1911de9a40450b10a",
+                "sha256:a839e25f07e428a87d17d857d9935dd743130e77ff46524abb992b962eb2076c",
+                "sha256:b62046592b44263fa7570f1117d372ae3f310222af1fc1407416f037fb3af21b",
+                "sha256:b7f7421841f8db443855d2854e25914a79a1ff48ae92f70d0a5c2f8907ab98c9",
+                "sha256:ba7ca81b6d60a9f7a0b4b4e175dcc38e8fef4992673d9d6e6879fd6de00dd9b8",
+                "sha256:bb32ca14b4d04e172c541c69eec5f385f9a075b38fb22d765d8b0ce3af3a0c22",
+                "sha256:c0ff1c1b4d13e2240821ef23c1efb1f009207cb3f56e16986f713c2b0e7cd37f",
+                "sha256:c669b440ce46ae3abe9b2d44a913b5fd86bb19eb14a8701e88e3918902ecd345",
+                "sha256:c67734cff78383a1f23ceba3b3239c7deefc62ac2b05fa6a47bcd565771e5880",
+                "sha256:c6809ebcbf6c1049002b9ac09c127ae43929042ec1f1dbd8bb1615f7cd9f70a0",
+                "sha256:cd601187476c6bed26a0398353212684c427e10a903aeafa6da40c63309d438b",
+                "sha256:ebfa374067af240d079ef97b8064478f3bf71038b78b017eb6ec93ede1b6bcec",
+                "sha256:fbb17c0d0822684b7d6c09915677a32319f16ff1115df5ec05bdcaaee40b35f3",
+                "sha256:fff1f3a586246110f34dc762098b5afd2de88de507559e63553d7da643053786"
+            ],
+            "version": "==5.4"
         },
         "docutils": {
             "hashes": [
-                "sha256:02aec4bd92ab067f6ff27a38a38a41173bf01bed8f89157768c1573f53e474a6",
-                "sha256:51e64ef2ebfb29cae1faa133b3710143496eca21c530f3f71424d77687764274",
-                "sha256:7a4bd47eaf6596e1295ecb11361139febe29b084a87bf005bf899f9a42edc3c6"
+                "sha256:0c5b78adfbf7762415433f5515cd5c9e762339e23369dbe8000d84a4bf4ab3af",
+                "sha256:c2de3a60e9e7d07be26b7f2b00ca0309c207e06c100f9cc2a94931fc75a478fc"
             ],
-            "version": "==0.14"
+            "version": "==0.16"
         },
         "idna": {
             "hashes": [
@@ -147,48 +165,70 @@
             ],
             "version": "==2.8"
         },
+        "importlib-metadata": {
+            "hashes": [
+                "sha256:ace61d5fc652dc280e7b6b4ff732a9c2d40db2c0f92bc6cb74e07b73d53a1771",
+                "sha256:fa5daa4477a7414ae34e95942e4dd07f62adf589143c875c133c1e53c4eff38d"
+            ],
+            "markers": "python_version < '3.8'",
+            "version": "==3.4.0"
+        },
         "more-itertools": {
             "hashes": [
-                "sha256:0125e8f60e9e031347105eb1682cef932f5e97d7b9a1a28d9bf00c22a5daef40",
-                "sha256:590044e3942351a1bdb1de960b739ff4ce277960f2425ad4509446dbace8d9d1"
+                "sha256:8e1a2a43b2f2727425f2b5839587ae37093f19153dc26c0927d1048ff6557330",
+                "sha256:b3a9005928e5bed54076e6e549c792b306fddfe72b2d1d22dd63d42d5d3899cf"
             ],
             "markers": "python_version > '2.7'",
-            "version": "==6.0.0"
+            "version": "==8.6.0"
+        },
+        "packaging": {
+            "hashes": [
+                "sha256:5b327ac1320dc863dca72f4514ecc086f31186744b84a230374cc1fd776feae5",
+                "sha256:67714da7f7bc052e064859c05c595155bd1ee9f69f76557e21f051443c20947a"
+            ],
+            "version": "==20.9"
         },
         "pkginfo": {
             "hashes": [
-                "sha256:7424f2c8511c186cd5424bbf31045b77435b37a8d604990b79d4e70d741148bb",
-                "sha256:a6d9e40ca61ad3ebd0b72fbadd4fba16e4c0e4df0428c041e01e06eb6ee71f32"
+                "sha256:029a70cb45c6171c329dfc890cde0879f8c52d6f3922794796e06f577bb03db4",
+                "sha256:9fdbea6495622e022cc72c2e5e1b735218e4ffb2a2a69cde2694a6c1f16afb75"
             ],
-            "version": "==1.5.0.1"
+            "version": "==1.7.0"
         },
         "pluggy": {
             "hashes": [
-                "sha256:19ecf9ce9db2fce065a7a0586e07cfb4ac8614fe96edf628a264b1c70116cf8f",
-                "sha256:84d306a647cc805219916e62aab89caa97a33a1dd8c342e87a37f91073cd4746"
+                "sha256:15b2acde666561e1298d71b523007ed7364de07029219b604cf808bfa1c765b0",
+                "sha256:966c145cd83c96502c3c3868f50408687b38434af77734af1e9ca461a4081d2d"
             ],
-            "version": "==0.9.0"
+            "version": "==0.13.1"
         },
         "py": {
             "hashes": [
-                "sha256:64f65755aee5b381cea27766a3a147c3f15b9b6b9ac88676de66ba2ae36793fa",
-                "sha256:dc639b046a6e2cff5bbe40194ad65936d6ba360b52b3c3fe1d08a82dd50b5e53"
+                "sha256:21b81bda15b66ef5e1a777a21c4dcd9c20ad3efd0b3f817e7a809035269e1bd3",
+                "sha256:3b80836aa6d1feeaa108e046da6423ab8f6ceda6468545ae8d02d9d58d18818a"
             ],
-            "version": "==1.8.0"
+            "version": "==1.10.0"
         },
         "pycodestyle": {
             "hashes": [
-                "sha256:95a2219d12372f05704562a14ec30bc76b05a5b297b21a5dfe3f6fac3491ae56",
-                "sha256:e40a936c9a450ad81df37f549d676d127b1b66000a6c500caa2b085bc0ca976c"
+                "sha256:2295e7b2f6b5bd100585ebcb1f616591b652db8a741695b3d8f5d28bdc934367",
+                "sha256:c58a7d2815e0e8d7972bf1803331fb0152f867bd89adf8a01dfd55085434192e"
             ],
-            "version": "==2.5.0"
+            "version": "==2.6.0"
         },
         "pygments": {
             "hashes": [
-                "sha256:5ffada19f6203563680669ee7f53b64dabbeb100eb51b61996085e99c03b284a",
-                "sha256:e8218dd399a61674745138520d0d4cf2621d7e032439341bc3f647bff125818d"
+                "sha256:bc9591213a8f0e0ca1a5e68a479b4887fdc3e75d0774e5c71c31920c427de435",
+                "sha256:df49d09b498e83c1a73128295860250b0b7edd4c723a32e9bc0d295c7c2ec337"
+            ],
+            "version": "==2.7.4"
+        },
+        "pyparsing": {
+            "hashes": [
+                "sha256:c203ec8783bf771a155b207279b9bccb8dea02d8f0c9e5f8ead507bc3246ecc1",
+                "sha256:ef9d7589ef3c200abe66653d3f1ab1033c3c419ae9b9bdb1240a85b024efc88b"
             ],
-            "version": "==2.3.1"
+            "version": "==2.4.7"
         },
         "pytest": {
             "hashes": [
@@ -208,10 +248,10 @@
         },
         "readme-renderer": {
             "hashes": [
-                "sha256:bb16f55b259f27f75f640acf5e00cf897845a8b3e4731b5c1a436e4b8529202f",
-                "sha256:c8532b79afc0375a85f10433eca157d6b50f7d6990f337fa498c96cd4bfc203d"
+                "sha256:267854ac3b1530633c2394ead828afcd060fc273217c42ac36b6be9c42cd9a9d",
+                "sha256:6b7e5aa59210a40de72eb79931491eaf46fefca2952b9181268bd7c7c65c260a"
             ],
-            "version": "==24.0"
+            "version": "==28.0"
         },
         "requests": {
             "hashes": [
@@ -238,17 +278,17 @@
         },
         "six": {
             "hashes": [
-                "sha256:3350809f0555b11f552448330d0b52d5f24c91a322ea4a15ef22629740f3761c",
-                "sha256:d16a0141ec1a18405cd4ce8b4613101da75da0e9a7aec5bdd4fa804d0e0eba73"
+                "sha256:30639c035cdb23534cd4aa2dd52c3bf48f06e5f4a941509c8bafd8ce11080259",
+                "sha256:8b74bedcbbbaca38ff6d7491d76f2b06b3592611af620f8426e82dddb04a5ced"
             ],
-            "version": "==1.12.0"
+            "version": "==1.15.0"
         },
         "tqdm": {
             "hashes": [
-                "sha256:d385c95361699e5cf7622485d9b9eae2d4864b21cd5a2374a9c381ffed701021",
-                "sha256:e22977e3ebe961f72362f6ddfb9197cc531c9737aaf5f607ef09740c849ecd05"
+                "sha256:4621f6823bab46a9cc33d48105753ccbea671b68bab2c50a9f0be23d4065cb5a",
+                "sha256:fe3d08dd00a526850568d542ff9de9bbc2a09a791da3c334f3213d8d0bbbca65"
             ],
-            "version": "==4.31.1"
+            "version": "==4.56.0"
         },
         "twine": {
             "hashes": [
@@ -258,12 +298,21 @@
             "index": "pypi",
             "version": "==1.13.0"
         },
+        "typing-extensions": {
+            "hashes": [
+                "sha256:7cb407020f00f7bfc3cb3e7881628838e69d8f3fcab2f64742a5e76b2f841918",
+                "sha256:99d4073b617d30288f569d3f13d2bd7548c3a7e4c8de87db09a9d29bb3a4a60c",
+                "sha256:dafc7639cde7f1b6e1acc0f457842a83e722ccca8eef5270af2d74792619a89f"
+            ],
+            "markers": "python_version < '3.8'",
+            "version": "==3.7.4.3"
+        },
         "urllib3": {
             "hashes": [
-                "sha256:61bf29cada3fc2fbefad4fdf059ea4bd1b4a86d2b6d15e1c7c0b582b9752fe39",
-                "sha256:de9529817c93f27c8ccbfead6985011db27bd0ddfcdb2d86f3f663385c6a9c22"
+                "sha256:2393a695cd12afedd0dcb26fe5d50d0cf248e5a66f75dbd89a3d4eb333a61af4",
+                "sha256:a637e5fae88995b256e3409dc4d52c2e2e0ba32c42a6365fee8bbd2238de3cfb"
             ],
-            "version": "==1.24.1"
+            "version": "==1.24.3"
         },
         "webencodings": {
             "hashes": [
@@ -279,6 +328,13 @@
             ],
             "index": "pypi",
             "version": "==0.33.1"
+        },
+        "zipp": {
+            "hashes": [
+                "sha256:102c24ef8f171fd729d46599845e95c7ab894a4cf45f5de11a44cc7444fb1108",
+                "sha256:ed5eee1974372595f9e416cc7bbeeb12335201d8081ca8a0743c954d4446e5cb"
+            ],
+            "version": "==3.4.0"
         }
     }
 }